I think this sort of thing works differently in my country (Israel) than it does in other places. Because religious and secular societies are more segregated, it's fairly common for people to affiliate themselves with a particular group due to the community's norms, customs or values rather than religious belief.
This is the public group instrumental rationality diary for October 16-31.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Previous diary: October 1-15
Rationality diaries archive